Non-pressure, gravity systems
A siphon-type solar boiler is used to provide hot water supply during the holiday season in hotels, boarding houses, tourist centers, country houses and cottages under conditions of water consumption at positive ambient temperatures.
They are used to provide hot water to seasonal facilities from April to October.
This is a thermosiphon (passive) system that does not have a pump and operates on the principle of natural circulation. In these systems, the finished water moves due to natural gravity, which occurs when the densities of the heated and cooled coolant differ. This is the simplest type of solar vacuum (or flat) collectors. The vacuum tubes are located at a certain angle and are connected directly to the storage tank.
The advantages of this system include the direct transfer of heat to water without the participation of other elements.
Features of a solar boiler
- High-temperature thermal insulation made of polyurethane foam of the storage tank body reduces heat loss, the thickness of the insulating layer is from 50 mm, is widely used by global manufacturers of hydraulic accumulators, allowing the solar boiler to operate efficiently at low temperatures.
- The internal container is made of stainless steel with a thickness of 0.4 mm
- The outer casing of the boiler is made of steel, thickness from 0.4 mm, coated with an anti-corrosion compound.
- Includes a support frame made of galvanized steel or aluminum, suitable for installation on either a flat or inclined surface.
- The vacuum tube is made of impact-resistant borosilicate glass with low iron content, main size Ø58×1800 mm.
- The coating of the inner tube (absorber) is a highly selective 12-layer three-component ALN/AIN-SS/Cu.
Frequently asked Questions
What factors should you consider when choosing a solar thermal system?
It is important to consider the required system power, equipment characteristics, geographical and spatial location of the system, characteristics and conditions of connection to your hot water supply or heating system.
How difficult is it to install a solar system?
Installation can range from simple to complex depending on the size of the system and installation conditions.
What is the average cost of a complete solar system kit?
The cost depends on the power and quality of the components, and usually starts from several thousand euros.